People who were not given amnesty on the occasion of Fathe Makkah

Q: This question is on behalf of my Hindu friend. He says that Muhammad (Sallallahu Alayhi Wasallam) killed two women Asma binti Marwan and Umm Qirfa. Can you please let me know of the reference of hadith and its reason.

A: Some people were not given amnesty on the occasion of Fathe Makkah because of the past wrongs that they had committed. For example, some had committed murder or engaged in plotting serious conspiracies and inciting trouble.